Not directed at the OP, but I've never quite understood the 'I've got Lifetime status, now time to stay/fly somewhere/someone else' thought process. If I've got Lifetime I'm sticking with the Lifetime program/airline to enjoy the bennies.

Having said that I usually kept midtier at a 2nd chain in case there weren't any Marriott properties around & I needed a back-up & wanted some elite bennies.

FWIW - Hilton's gutted their program in a myriad of ways, so I'd steer jetz away from that as his 2nd choice.

Cheers.